Just putting together a new system and all I have are 3 wire fans for the heatsink. The CPU fan connection on the motherboard is a 4 pin thingy.<br>I can plug in the 3 pin connector but the fan ...

Not only that, but NVIDIA had an older-gen GA102 "Ampere" prototype PCB that featured 4 x 8-pin power connectors, GA104 with 3 x 8-pin power connectors, GA107 with 1 x 8-pin power connector ...